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Автор - alimhan317

математика 6 класс номер 367​

Ответ

Автор - jekadva

Ответ:

Пошаговое объяснение:

a)

5*(y-3,5) = 8 5/6 * 3/53

5y - 17,5 = 53/6 * 3/53

5y - 17,5 = 1/2 = 0,5

5y = 0,5 + 17,5

5y = 18

y = 18 : 5

y = 3,6

=======

б)

7*(y - 3,5) = 9 5/11 * 33/104

7y - 24,5 = 104/11 * 33/104

7y - 24,5 = 3

7y = 3 + 24,5

7y = 27,5

y = 27,5 : 7

y = 3 13/14

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